Capping-off stick.



W. R. CAMPBELL.

CAPPING OFF STIQK. APPLICATION FILED OCT. 6. 1916.

PatentedMar. 5, 1918.

Z SHEETS-SHEET i.

WITNESSES W. R. CAMPBELL.

CAPPING OFF STiCK- APPLICATION men 00L s. 1916.

Patented Mar. 5, 1918.

2 SHEETS-SHEET 2.

INVENTOR in I are

. GAJPPILTG- eaters.

Specification of {letters .Batent.

WlILLIAM n, CAMJTBELLQ or nanoasrnn, 'QHIQ.

one sear 1K.

ienrli atiet led 1 91 0 1 31 1 seri NQ- 12 8 Z all whom it may concern:

Be it known that I, .Wi nrA R. CAMP- BELL, a citizen of the United States. and a resident of Lancaster, State of Ohio, have invented certain new and useful Improvements in Capping-0ft Sticks; and I do hereby declare the following to be a full, clean. and exact description of the invention, such as will enable others skilledin the art to whichv it appertains to make and use the same.

My invention relates to an improvement in capping off stick for glass cylinders, the object being to provide a simple and easily operated, hand tool for quickly and accurately capping off glass cylinders and for cutting the latter up into smaller sections, and it consists in a handle carrying two pernwee tly d een e end e er es heatingwire permanently attached at one end to one of said contacts and attached at its other end to a reel carried by a frame detachably secured to the handle and adapted to be brought in engagement with the other contactv when the parts are assembled for use.

My invention further consists in the parts and combinations of parts, as will be more fully explained and. pointed out in the claims.

In the accompanyingdrawings, Figure l is a view in side elevation partly in section of my improvement; Fig. 2 is an edge view of the same; Fig. 3 is a view of thelopposite V edge; Fig. 4: is an end view; Fig. -5 is a view in transverse section of the body of the tool in the plane of the plunger 24, the casing of the reel being broken to, show the spring; Fig. 6 is a view showing the manner of using the device.

The body 1 of the tool Or capping off stick is oblong and. is provided at oneiend. with. a handle 2,- and at its opposite end with two metal contact blocks 3 and 4, which are separated. by suitable insulating material 5 shown in dotted lines in Fig. 1. and in full 1 lines in Fig. 4.

The body of the tool and its handle are I made of fiber or other suitable non-eonducting: material and preferably in three -sec-.

,V edge to receive the frameS), carrying the Elec ric on to 0 f leadns n Wi s 11 and. .11? are connected respectively withthe term nals 7 an W re 1, c nn c with terminal 12,.and wire 7 is secured to the switch tongue 6 and is connected up with leading in wire 11 by the switch lever H. NVireT is electrically, connected at its oppo- Site, end t Contact block?) and wire 8 is connected to contact block l.

Bloch t is cut away on its outer edge to receive the. roller 15 and also to. permit the he ting w re to Pass in app w ima y s rai h ne th r e .0, nd bleek 3 i i men ed t a. 11 1 wh ch raises t ough the ame fer ie pa sag t ae te ime Wi 7 which after passing through said hole, is .permsnently secured to the screw 11" segnred .i to, block 3. t

The frame 9 is made of metal. and co n-l p is Wai e 161 mem er ca rying =1 Shaft .4? on which the reel 1Q is loosely mounted, but which is connected up to theshaft by a a spring 10 so as toexert a yielding pull on the heating wire 16 and thus hold the same taut and take up any slack caused by-the eXp-ansion or elongation. of the heating wire 7 after it has been heated. The shaft carries a ratchet wheel 18, and a milled thumb wheel 1 1 91,, and the frame 4 oarriesa pawl 2Q adapt. ed to engage the ratchet wheel 18 andthus hold the same and the shaft against rotation in one direotion, the pawl QObeing provided .with a projectingend 21 by which it can be readily disengaged from the ratchet wheel, in order to perm it the heating wire to be unwound from the reel, One Side of the frame is continued up. as at 22 and pro- -vided with ELhOOk which is adapted to engage the headedhstud 2% carried by the tool or stick 1, and-iii; is: locked in place by y, the spring actuatedqplunger 25 which latter, when released, enters a notch QGintheedge of the upwardly projectingportion 22 of the frame 9 and locks the latter on the stud 24h 1-To remove the frame 9 the plunger 25 is withdrawn thus leaving the hook 23 free to be moved endwiseroif the stud 24.

In the use of the device the operator disconnects the removable frame 9 and passes the same over the cylinder as shown in Fig. 6. As the. frame acts as a weight on the end of the wire, it will be seen, that by a very simple manipulation of the wire, the frame can be swung forwardly under the cylinder so as to be conveniently reached by the operator, who then passes the hook 23 on the frame over the stud, after which he releases the plunger 25 which moves into the notch '26 in frame 9 and locks the latter to the stick,

The cylinders vary but slightly in diameter so that the free wire between the block 3 and the reel is usually sufficient to embrace the cylinder, and any variation in size can be taken care of by letting out wire from the reel or winding up the surplus.

' After the frame carryingthe reel has been secured to the stick, the wire surrounding the cylinder is drawn tightly into contact with'the latter, and when so drawn will be 7 under the tension of the spring in the reel,

' blocks 3 and 4, as shown in Fi 1 so that the latter will then yieldingly pull on the tigntened wire, thus providing for contraction due to cooling and elongation of the wire due to heating. After the wire has been properly applied to the cylinder, the switch lever 1-1 is moved to close the circuit, and the current passing through the wire 16 rapidly heats the latter, and the heat being communicated to the cylinder causes the same to breakor fracture on the heated line.

' The heating of the wire causes it to elongate, but this elongation is taken care of by the spring in the reel, which winds up the latter and takesup the slack.

In order to heat the cylinder the gap between the wires where the latter engage, the

i, the opera- ;tor shifts the stick up or down thus carrying the hot wire into contact with the portion of the cylinder that was in the gap. To make another cut, the frame may be removed from the stick and applied as before, or the wire loop embracing the cylinder may be slightly enlarged'by letting out some wire and then moving it along the cylinder to the proper 'point.

copies ofthis patentmay be obtained for body and carrying a reel, a heating wire permanently secured to one terminal and adapted to engage the other terminal at each operation of the tool, the other end of said heating wire being secured to the reel, electric conductors connected with the terminal and a switch for closing the circuit through the conductors and heating wire.

2. A glass severing tool consisting of a body having two terminals for the heating wire, a frame detachably secured to said body, a shaft. mounted in said frame, a reel loose on the shaft, a spring connection hetween the shaft and reel, a heating wire sccured at one end to one terminal and engaging the other terminal, the other end of said wire being secured to the reel, electric conductors connected with the terminals and a switch for closing the circuit tl'irough the conductors and heating wire.

3. A glass severing tool consisting of a body having two terminals for the heating wire, a frame detachably secured to said body, a shaft mounted in said frame, a ratchet wheel fixed to the shaft, a pawl carried by the frame and engaging the ratchet wheel, a reel loosely mounted on the shaft, a spring connecting the shaft and reel whereby the latter is rotated by the shaft but has a yielding movement thereon, a heating wire secured at one end to one terminal, and at its other end to the reel, electric conductors connected with said terminals and a switch for closing the circuit through the conductors and heating wire.

' '5'. A glass severing tool consisting of a body having two terminals for the heating wire, a frame detachably secured to said body and carrying a shaft, yielding means connecting the shaft and reel whereby the latter may have limited rotation independently of the shaft, a heating wire connected at one end to one terminal and at its other end to the reel, a projection on the second terminal to be engaged by the wire at each operation of the tool. electric conductors leading to the terminals and a switch for closing the circuit leading to the conductors and heating wire.

In testimony whereof, I have signed this specification in the presence of two Subscribing witnesses.

' \VILLIAM R. CAMPBELL.

Witnesses:

CHARLES F. MILLER, RALPH H. \VoLFn.

five cents each, by addressing the Commissioner of Patents.

Washington, D. C." 

